Seiko Cal. 7018 - 938

The 7018-938 is a sought-after Automatic piece from Seiko's golden era. Powered by the 7018 caliber with 28j jewels beating at 21,600 bph, it delivers a 49 hours power reserve. [seikata-wm-ab47aa1b7c4c]

Also known as: Tuna, World Timer

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

37mm

Case Thickness

11.3mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Green

Jewels

28j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1978

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